Results 11 to 20 of about 3,553,938 (121)

The Fractal Dimension of Nuclear Chromatin as a Prognostic Factor in Acute Precursor B Lymphoblastic Leukemia

Cellular Oncology, 2006
The fractal nature of the DNA arrangement has been postulated to be a common feature of all cell nuclei. We investigated the prognostic importance of the fractal dimension (FD) of chromatin in blasts of patients with acute precursor B lymphoblastic ...
Randall L. Adam, Rosana C. Silva, Fernanda G. Pereira, Neucimar J. Leite, Irene Lorand-Metze, Konradin Metze   +5 more
doaj   +2 more sources

Fractal characteristics of May-Grünwald-Giemsa stained chromatin are independent prognostic factors for survival in multiple myeloma.

PLoS ONE, 2011
BackgroundThe use of computerized image analysis for the study of nuclear texture features has provided important prognostic information for several neoplasias.
Daniela P Ferro, Monica A Falconi, Randall L Adam, Manoela M Ortega, Carmen P Lima, Carmino A de Souza, Irene Lorand-Metze, Konradin Metze   +7 more
doaj   +2 more sources

Fractal dimension of transport coefficients in a deterministic dynamical system [PDF]

, 2004
In many low-dimensional dynamical systems transport coefficients are very irregular, perhaps even fractal functions of control parameters. To analyse this phenomenon we study a dynamical system defined by a piece-wise linear map and investigate the ...
Claes I, Cvitanovi? P, Dorfman J R, Gaspard P, Gilbert T, Gilbert T, Grossmann S, Klages R, Klages R, Klages R, Klages R, Koza Z, Koza Z, Mátyás L, Nicolis G, Tricot C, Zbigniew Koza   +16 more
core   +2 more sources

Quasiperiodic granular chains and Hofstadter butterflies. [PDF]

Philos Trans A Math Phys Eng Sci, 2018
We study quasiperiodicity-induced localization of waves in strongly precompressed granular chains. We propose three different set-ups, inspired by the Aubry–André (AA) model, of quasiperiodic chains; and we use these models to compare the effects of on ...
Martínez AJ, Porter MA, Kevrekidis PG.
europepmc   +3 more sources

Enhancing Volumetric Bouligand-Minkowski Fractal Descriptors by using Functional Data Analysis [PDF]

arXiv.org, 2011
This work proposes and studies the concept of Functional Data Analysis transform, applying it to the performance improving of volumetric Bouligand–Minkowski fractal descriptors.
J. Florindo, M. Castro, O. Bruno
semanticscholar   +1 more source

Fractal descriptors based on the probability dimension: a texture analysis and classification approach [PDF]

, 2014
In this work, we propose a novel technique for obtaining descriptors of gray-level texture images. The descriptors are provided by applying a multiscale transform to the fractal dimension of the image estimated through the probability (Voss) method.
Bruno, Odemir Martinez, Florindo, João Batista   +1 more
core   +2 more sources

Fractal Dimension as a measure of the scale of Homogeneity [PDF]

, 2010
In the multi-fractal analysis of large scale matter distribution, the scale of transition to homogeneity is defined as the scale above which the fractal dimension of underlying point distribution is equal to the ambient dimension of the space in which ...
Amendola, Angulo, Bagla, Bagla, Bagla, Bagla, Bagla, Barabási, Bernstein, Bharadwaj, Bharadwaj, Bond, Borgani, Broadhurst, Cohn, Colless, Einasto, Einasto, Einasto, Einstein, Eisenstein, Falconer, Faucher-Giguère, Feldman, Giavalisco, Hogg, Huchra, Huchra, J. S. Bagla, Jaswant K. Yadav, Jones, Kaiser, Kazin, Khandai, Komatsu, Le Fèvre, Lilly, Mandelbrot, Martinez, Martínez, Nishikanta Khandai, Peebles, Sarkar, Scoville, Seljak, Shectman, Smith, Smith, Springel, Sylos Labini, Sylos Labini, Sánchez, Yadav, York   +53 more
core   +1 more source

Post-adolescent developmental changes in cortical complexity. [PDF]

Behav Brain Funct, 2014
BackgroundPost-adolescence is known to be a period of general maturation and development in the human brain. In brain imaging, volumetric and morphologic cortical grey-matter changes can easily be assessed, but the analysis of cortical complexity seems ...
Sandu AL, Izard E, Specht K, Beneventi H, Lundervold A, Ystad M.   +5 more
europepmc   +2 more sources

Severi-Bouligand tangents, Frenet frames and Riesz spaces [PDF]

, 2014
It was recently proved that a compact set $X\subseteq \mathbb R^2$ has an outgoing Severi-Bouligand tangent vector $u\not=0$ at $x\in X$ iff some principal ideal of the Riesz space $\mathcal R(X)$ of piecewise linear functions on $X$ is not an ...
Cabrer, Leonardo Manuel, Mundici, Daniele   +1 more
core   +3 more sources

SYNTHETIC MINORITY OVERSAMPLING TECHNIQUE AND FRACTAL DIMENSION FOR IDENTIFYING MULTIPLE SCLEROSIS

, 2017
Multiple sclerosis (MS) is a severe brain disease. Early detection can provide timely treatment. Fractal dimension can provide statistical index of pattern changes with scale at a given brain image.
Yudong Zhang, Yin Zhang, Preetha Phillips, Z. Dong, Shuihua Wang   +4 more
semanticscholar   +1 more source